/*******************************************************************************
 * Copyright 2011, 2012 Chris Banes.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/
package app.lhq.ok406.framedemos.android_pulltorefresh;

import android.app.ListActivity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.format.DateUtils;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnLastItemVisibleListener;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;
import com.handmark.pulltorefresh.library.PullToRefreshBase.State;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import com.handmark.pulltorefresh.library.extras.SoundPullEventListener;

import java.util.Arrays;
import java.util.LinkedList;

import app.lhq.ok406.framedemos.R;

public final class PullToRefreshListActivity extends ListActivity {

    static final int MENU_MANUAL_REFRESH = 0;
    static final int MENU_DISABLE_SCROLL = 1;
    static final int MENU_SET_MODE = 2;
    static final int MENU_DEMO = 3;

    private LinkedList<String> mListItems;
    private PullToRefreshListView mPullRefreshListView;
    private ArrayAdapter<String> mAdapter;

    //数据
    private String[] mStrings = { "Abbaye de Belloc", "Abbaye du Mont des Cats", "Abertam", "Abondance", "Ackawi",
            "Acorn", "Adelost", "Affidelice au Chablis", "Afuega'l Pitu", "Airag", "Airedale", "Aisy Cendre",
            "Allgauer Emmentaler", "Abbaye de Belloc", "Abbaye du Mont des Cats", "Abertam", "Abondance", "Ackawi",
            "Acorn", "Adelost", "Affidelice au Chablis", "Afuega'l Pitu", "Airag", "Airedale", "Aisy Cendre",
            "Allgauer Emmentaler" };

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_ptr_list);

        mPullRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_refresh_list);

        // Set a listener to be invoked when the list should be refreshed.
        mPullRefreshListView.setOnRefreshListener(new OnRefreshListener<ListView>() {
            @Override
            public void onRefresh(PullToRefreshBase<ListView> refreshView) {
                String label = DateUtils.formatDateTime(getApplicationContext(), System.currentTimeMillis(),
                        DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_ABBREV_ALL);

                // Update the LastUpdatedLabel
                refreshView.getLoadingLayoutProxy().setLastUpdatedLabel(label);

                // Do work to refresh the list here.
                new GetDataTask().execute();
            }
        });

        // Add an end-of-list listener
        mPullRefreshListView.setOnLastItemVisibleListener(new OnLastItemVisibleListener() {

            @Override
            public void onLastItemVisible() {
                Toast.makeText(PullToRefreshListActivity.this, "已经没有内容了喔~", Toast.LENGTH_SHORT).show();
            }
        });

        ListView actualListView = mPullRefreshListView.getRefreshableView();

        // Need to use the Actual ListView when registering for Context Menu
        registerForContextMenu(actualListView);

        mListItems = new LinkedList<String>();
        mListItems.addAll(Arrays.asList(mStrings));

        mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mListItems);

        /**
         * Add Sound Event Listener
         */
        SoundPullEventListener<ListView> soundListener = new SoundPullEventListener<ListView>(this);
        soundListener.addSoundEvent(State.PULL_TO_REFRESH, R.raw.pull_event);
        soundListener.addSoundEvent(State.RESET, R.raw.reset_sound);
        soundListener.addSoundEvent(State.REFRESHING, R.raw.refreshing_sound);
        mPullRefreshListView.setOnPullEventListener(soundListener);

        // You can also just use setListAdapter(mAdapter) or
        // mPullRefreshListView.setAdapter(mAdapter)
        actualListView.setAdapter(mAdapter);
    }

    private class GetDataTask extends AsyncTask<Void, Void, String[]> {

        @Override
        protected String[] doInBackground(Void... params) {
            // Simulates a background job.
            try {
                Thread.sleep(4000);
            } catch (InterruptedException e) {
            }
            return mStrings;
        }

        @Override
        protected void onPostExecute(String[] result) {
            mListItems.addFirst("Added after refresh...");
            mAdapter.notifyDataSetChanged();

            // Call onRefreshComplete when the list has been refreshed.
            mPullRefreshListView.onRefreshComplete();

            super.onPostExecute(result);
        }
    }

}
